E-invoicing

E-invoicing

What is the invoicing mandate? What is a billing mandate and why do I need to sign one? What does the "Signed PDF" e-invoicing mode mean? What dematerialization method does an “unsigned PDF” correspond to? What are the dematerialization methods available in the SY portal? My client offers to digitise my invoices in PDF or signed PDF. How and when should I choose?

Frequently asked questions